Subject: Re: [OAUTH-WG] I-D Action: draft-ietf-oauth-dpop-05.txt

From: Mike Jones <[email-masked]>
Date: Mon, 21 Feb 2022 06:42:01 +0000

My blog post about this draft is https://self-issued.info/?p=2254, which is also referenced from https://twitter.com/selfissued/status/1495648445524508673.

                                                       -- Mike

From: OAuth <[email-masked]> On Behalf Of Daniel Fett
Sent: Saturday, February 19, 2022 12:48 PM
To: [email-masked]
Subject: Re: [OAUTH-WG] I-D Action: draft-ietf-oauth-dpop-05.txt

This version brings a lot of changes to DPoP, but we're also hoping to get closer to a final version. As usual, your feedback is appreciated!

-Daniel

Changelog:

-05

  *   Added Authorization Code binding via the dpop_jkt parameter.
  *   Described the authorization code reuse attack and how dpop_jkt mitigates it.
  *   Enhanced description of DPoP proof expiration checking.
  *   Described nonce storage requirements and how nonce mismatches and missing nonces are self-correcting.
  *   Specified the use of the use_dpop_nonce error for missing and mismatched nonce values.
  *   Specified that authorization servers use 400 (Bad Request) errors to supply nonces and resource servers use 401 (Unauthorized) errors to do so.
  *   Added a bit more about ath and pre-generated proofs to the security considerations.
  *   Mentioned confirming the DPoP binding of the access token in the list in Section 4.3.
  *   Added the always_uses_dpop client registration metadata parameter.
  *   Updated references for drafts that are now RFCs.
Am 19.02.22 um 21:42 schrieb [email-masked]<mailto:[email-masked]>:

A New Internet-Draft is available from the on-line Internet-Drafts directories.

This draft is a work item of the Web Authorization Protocol WG of the IETF.

        Title           : OAuth 2.0 Demonstrating Proof-of-Possession at the Application Layer (DPoP)

        Authors         : Daniel Fett

                          Brian Campbell

                          John Bradley

                          Torsten Lodderstedt

                          Michael Jones

                          David Waite

  Filename        : draft-ietf-oauth-dpop-05.txt

  Pages           : 42

  Date            : 2022-02-19

Abstract:

   This document describes a mechanism for sender-constraining OAuth 2.0

   tokens via a proof-of-possession mechanism on the application level.

   This mechanism allows for the detection of replay attacks with access

   and refresh tokens.

The IETF datatracker status page for this draft is:

https://datatracker.ietf.org/doc/draft-ietf-oauth-dpop/

There is also an HTML version available at:

https://www.ietf.org/archive/id/draft-ietf-oauth-dpop-05.html

A diff from the previous version is available at:

https://www.ietf.org/rfcdiff?url2=draft-ietf-oauth-dpop-05

Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

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